Seam for sewed articles.



Patented Sept. 24, 1918.

'lNV NTOR MK.

5 S E N W W A:I'TORNEY e and bottom faces of intermediate UNITED snaresALBERT H. DE VOE, OF WES'IFIELD, NEW JERSEY, SINGER l1.lX'U- FACTURINGCOMPANY, A CORPORATIGN SEAIM FOR SEVVED ARTICLES, I

Application filed December 27, 1916. Serial No. asers To all whom it mayconcern:

-Be it known that I, ALBERT H. 'DE Von, a citizen of the United States,residing at \Vestfield, in the county of Union and'State of New Jersey,have invented certain new and useful Improvements in Seams for SewedArticles, of which the following is a specification, reference being hadtherein to the accompanying drawings.

This invention relates to ,seams for sewed articles and has for anobject to provide a seam wherein upper and lower plies of fabric aresecured together, onto the top fabric material, by one or,1no're seriesof connected penetrative thread-loop structures, in such a manner thatthe connecting thread-poi tions are hidden from view.

More particularly, the invention has for an object to provide a seamwherein the plies of a longitudinally folded strip of tape, braid or thelike, are connected bya series (fJf blind stitches spaced from the lineof old.

A further object of the invention is to provide a seam wherein a stripof binding material is blind-stitched to the marginal portion of abody-fabric. Further objects of the invention will appear from thefollowing description and claims.

These objects are attained by the intproved seam structure which, in itspreferred embodiment, comprises a body-fabric pro-- 35 senting an edgewhich is covered by a longitudinall folded strip of tape. A line ofblind stitches, spaced from the folded edge of the binding strip,connects the upper and lower plies of the latter and passes through thebody-fabric. The line of blind-stitches comprises a series of keyed,penetrative,

thread-loop structures each of which enters and emerges from the inneror hidden surfaces of the upper and lower plies of the folded bindingstrip, preferably without showing at the outer or visible surfaces ofsaid plies. A convenient. mechanism for carrying the invention intoeffect isdisclosed in my copending application Serial No. 139,073, filedDecember 27, 1916.

In the accompanying drawings, Figure l is a perspective viewillustrating a convenient mechanism for carrying the invention intoeffect and Fig. 2 is a perspective view of the seam; a portion of thebody-fabric being Specification of Letters Patent.

' Furthermore,

or nnwo snsnr.

7 Patch shown in dotted lines to reveal the connect spaced from the fold6.

The line ofbl (l-stitches comprises a series of keyed, penetrative,thread-loop structures 8 each of which enters the inneror hiddensur'face ornicap er ply 4 at the point 10, emerges from said surface at11, passes downwardly through the intermediate fabric material 1 to thelower ply 5, enters the inner or hidden surface of the ply 5 at 12 andemerges from said surface at 13. In the present instance the penetrativethread-loop structures 8 of the series are connected together by thethread-portions 14, it which extend along the inner or hidden surfacesof the plies 4 and 5 f the folded binding material 3. While a seamwherein the portions of the thread-loop structuresbetween the. points 10and 11, or 12 and 15, do not show at the outer or visible surfaces ofthe plies 4L and 5 is preferred, it is to be understood that suchportions need not necessarily be blind but i'nay extend entirely throughthe thickness of the plies i and 5 within the scope of the invention. Intl e. present instance a twothread loclrstitch 81..Z1 Illpl of keyedthreat loop structure is shown, the keying being accomplished by theinterlocking of the upper and lower threads at the point 15 Theinvention is not limited, however, to the use of *a lock-stitch or anyother type of stitch. in the embodi nent illustrated, the location ofthe locking point 15 is i1nn1aterial. 0

Although the seam may be produced by hand, a convenient mechanism forcarrying it into effect comprise a binder 16 of the well known Englishtype having the endportions of its inclined, U-shaped,fold-inbody-febric 1 is presented to the binder, it will he covered bythe strip 3 in such a manner that the fastening stitches will not beVisible at either side of the seam. If the body-fabric is not presentedto the hinder the stitch-forming mechanism will act upon the bindingstrip 3 alone and stitch the upper and lower plies thereof together toform a tubular structure such as shown at the right of Fig. 2. Thedirection of feed of the material is indicated by an arrow.

Having thus set forth the nature of the invention, What I claim hereinis 1. In a seam for sewedarticles, in combination, upper and lower pliesof material, having superimposed edgeq'iortions and a line of fasteningstitches connecting said edge-portions, said stitches including a seriesof keyed, penetrative, thread-loop structures each entering and emergingfrom the inner or hidden surfaces of said plies without showing at theouter or visible surfaces of said plies.

2. In a seam for sewed articles, in combi- .nation, upper and lowerplies of material,

having superimposed edge-portions, and a line of fastening stitchesconnecting said muses edge'portions, said stitches including a series ofkeyed, penetrative, thread-loop structures each entering andemergingfrom the inner or hidden surfaces'of said plies.

3. In aseam for sewed articles, in combination, a longitudinally foldedstrip of material presenting upper and lower plies, and fasteningstitches connecting said plies at a distance from the line of fold, saidstitches including a series of keyed, penetrative thread-loop structureseach entering and emerging from the inner orhidden surfaces of saidplies. 1

4. In a seam for sewed articles, in combination, a body-fabricpresenting an edge, a longitudinally folded strip of binding materialcovering said edge and having upper and lower plies disposed mainly atopposite sides of said b0dy-fabric, and fastening stitches including aseries of keyed, penetrative, thread-loop structure's each entering andemerging from the inner orhidden .sur-

faces of said plies and passing through the body-fabric. I v

In testimony whereof, I have signed my name to this specification.

ALBERT-H. DEVOE.

